xtremerat | 1060162072392c39d3d7ae4ad30fd2f391d0d40961708e935d599662066942f7

General

Target

JaffaCakes118_3d6280da3af4421e4aa08f14486cde73.exe
Size

141KB
MD5

3d6280da3af4421e4aa08f14486cde73
SHA1

e5b3f3c1e7875956070bd6978dddb6e9190a013f
SHA256

1060162072392c39d3d7ae4ad30fd2f391d0d40961708e935d599662066942f7
SHA512

0e2034931502c3b8e78e60e8705cb59139c952db61a9c8b037352de8d2951a3f0c4dcb4d441137459f8ab0021113e25602b4154b00896a2a13e38f1b9e72c460
SSDEEP

3072:RmVZ3bRZW2+dzaw0sMJttlUyFlI+e+5pOdKqWUuRj:aRDWB5A80I+YvfuRj

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/4696-7-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4696-8-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2476-9-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4696-10-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2476-11-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat

XtremeRAT
The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.
persistence spyware rat xtremerat
Xtremerat family
xtremerat

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3564 set thread context of 4696	3564	JaffaCakes118_3d6280da3af4421e4aa08f14486cde73.exe	83

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4696-3-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4696-5-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4696-7-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4696-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2476-9-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4696-10-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2476-11-0x0000000010000000-0x000000001004D000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2696	2476	WerFault.exe	84
4576	2476	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3d6280da3af4421e4aa08f14486cde73.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3d6280da3af4421e4aa08f14486cde73.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3564	JaffaCakes118_3d6280da3af4421e4aa08f14486cde73.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3564 wrote to memory of 4696	3564	JaffaCakes118_3d6280da3af4421e4aa08f14486cde73.exe	83
PID 3564 wrote to memory of 4696	3564	JaffaCakes118_3d6280da3af4421e4aa08f14486cde73.exe	83
PID 3564 wrote to memory of 4696	3564	JaffaCakes118_3d6280da3af4421e4aa08f14486cde73.exe	83
PID 3564 wrote to memory of 4696	3564	JaffaCakes118_3d6280da3af4421e4aa08f14486cde73.exe	83
PID 3564 wrote to memory of 4696	3564	JaffaCakes118_3d6280da3af4421e4aa08f14486cde73.exe	83
PID 3564 wrote to memory of 4696	3564	JaffaCakes118_3d6280da3af4421e4aa08f14486cde73.exe	83
PID 3564 wrote to memory of 4696	3564	JaffaCakes118_3d6280da3af4421e4aa08f14486cde73.exe	83
PID 3564 wrote to memory of 4696	3564	JaffaCakes118_3d6280da3af4421e4aa08f14486cde73.exe	83
PID 4696 wrote to memory of 2476	4696	JaffaCakes118_3d6280da3af4421e4aa08f14486cde73.exe	84
PID 4696 wrote to memory of 2476	4696	JaffaCakes118_3d6280da3af4421e4aa08f14486cde73.exe	84
PID 4696 wrote to memory of 2476	4696	JaffaCakes118_3d6280da3af4421e4aa08f14486cde73.exe	84
PID 4696 wrote to memory of 2476	4696	JaffaCakes118_3d6280da3af4421e4aa08f14486cde73.exe	84
PID 4696 wrote to memory of 4088	4696	JaffaCakes118_3d6280da3af4421e4aa08f14486cde73.exe	85
PID 4696 wrote to memory of 4088	4696	JaffaCakes118_3d6280da3af4421e4aa08f14486cde73.exe	85
PID 4696 wrote to memory of 4088	4696	JaffaCakes118_3d6280da3af4421e4aa08f14486cde73.exe	85

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3d6280da3af4421e4aa08f14486cde73.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3d6280da3af4421e4aa08f14486cde73.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3564
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3d6280da3af4421e4aa08f14486cde73.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3d6280da3af4421e4aa08f14486cde73.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4696
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2476
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2476 -s 480
      4⤵
      Program crash
      PID:2696
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2476 -s 488
      4⤵
      Program crash
      PID:4576
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:4088

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2476 -ip 2476
1⤵
PID:1312

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 2476 -ip 2476
1⤵
PID:3996

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2476-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2476-11-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3564-0-0x0000000000400000-0x0000000000440970-memory.dmp

Filesize
258KB

Download
memory/3564-6-0x0000000000400000-0x0000000000440970-memory.dmp

Filesize
258KB

Download
memory/4696-3-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4696-5-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4696-7-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4696-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4696-10-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

Sharing